diff --git a/requirements.txt b/requirements.txt
index 4d2b7e5fa..22f185f1c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -22,7 +22,7 @@ numpy
 oauthlib==3.2.0
 opt-einsum==3.3.0
 packaging==21.3
-protobuf==3.19.4
+protobuf==3.19.5
 pyasn1==0.4.8
 pyasn1-modules==0.2.8
 pyparsing==3.0.9